Add NOTICE file

[MSevey]

Overview

Create NOTICE file to properly use LICENSE

Checklist

• New and updated code has appropriate documentation
• New and updated code has new and/or updated testing
• Required CI checks are passing
• Visual proof for any user facing features like CLI or documentation updates
• Linked issues closed with keywords

[codecov]

Codecov Report

Merging #127 (eaa6599) into master (25711ba) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #127   +/-   ##
=======================================
  Coverage   96.33%   96.33%           
=======================================
  Files           6        6           
  Lines         464      464           
=======================================
  Hits          447      447           
  Misses         11       11           
  Partials        6        6           

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